The best rock album of the year award went to Muse for The Resistance, and after giving a baby bump-revealingKate Hudson a kiss, Matt Bellamy bounded to the stage to say, "a special thanks to my beautiful pregnant girlfriend over there!" Lady Antebellum took home top honors for their country record, and then a rather colorfully dressed Cee-Lo Green appeared in feathers and with puppets to sing "Forget You" alongside a Tracy Anderson-tonedGwyneth Paltrow. Gwyneth went with the feather theme with a pair of pink earrings, but the real head-turner was her skin tight catsuit. Katy Perrysweetly incorporated images from her wedding in India with husband Russell Brand before segueing into dance mode with a snippet of "Teenage Dream," which had even Nicole Kidman bopping her head in the audience! John Mayer, Norah Jones, and Nicole's husband Keith Urban were next up to do a rendition of Dolly Parton's "Jolene," and the collaborations kept coming from Rihanna with both Eminem and Drake. Esperanza Spalding pulled off an upset in the best new artist category defeating big names like Florence and the Machine and Justin Bieber, while Lady Antebellum accomplished a similar feat taking home best record of the year for "Need You Now." Arcade Fire was the big winner with a best album nod for The Suburbs — check out all honorees over on Buzz!